package com.heima.config;

import com.heima.common.json.JacksonObjectMapper;
import com.heima.interceptor.JwtTokenAdminInterceptor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.format.FormatterRegistry;
import org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

/**
 * 配置类，注册web层相关组件
 */
@Configuration
@Slf4j
public class WebMvcConfiguration extends WebMvcConfigurationSupport {

    @Autowired
    private JwtTokenAdminInterceptor jwtTokenAdminInterceptor;

    /**
     * 注册自定义拦截器
     *
     * @param registry
     */
    protected void addInterceptors(InterceptorRegistry registry) {
        log.info("开始注册自定义拦截器...");
        registry.addInterceptor(jwtTokenAdminInterceptor)
                .addPathPatterns("/api/vm-service/**")
                .addPathPatterns("/api/user-service/**")
                .addPathPatterns("/api/order-service/**")
                .addPathPatterns("/api/task-service/**")
                .excludePathPatterns("/api/user-service/user/login");
    }

    /**
     * 设置静态资源映射
     * @param registry
     */
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
        // 添加静态资源映射，解决404问题
        registry.addResourceHandler("/**").addResourceLocations("classpath:/static/");
    }

    /*
     * 扩展spring MVC框架的信息转换器，使用阿里的fastjson进行json转换
     * */
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器...");
        //创建一个消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //需要为消息转换器设置一个对象转换器，对象转换器可以将java对象转换为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到spring mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }
    /**
     * 添加日期格式转换器
     */
    @Override
    protected void addFormatters(FormatterRegistry registry) {
        // 注册LocalDateTime转换器
        registry.addFormatterForFieldAnnotation(new DateTimeFormatAnnotationFormatterFactory());
        super.addFormatters(registry);
    }
}
